Latch-lever



(No Model.)

E. J. MULLER. LATCH LEVER.

No. 570,674. Patented Nov. 3, 1896.

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UNITED STATES PATENT OFFICE.

ERNST J. MULLER, OF BUTTE, MONTANA.

LATCH-LEVER.

SPECIFICATION formingpart of Letters Patent No. 570,674, dated November 3, 1896.

Application filed November 6, 1893- Serial 4 1 N 11101 To all whom it may concern:

Be it known that I, ERNST J. MULLER, of Butte, in the county of Silver Bow and State of Montana, have invented certain new and useful Improvements in Latch-Levers; and I do hereby declare that the following is a full, clear, and exact description of the invention, which will enable others skilled in the art to which it pertains to make and use the same, reference being had to the accompanying drawing, and to the letters of reference marked thereon, which forms a part of this specification.

The main object of my invention is to Sim-- plify and improve the construction and operation of latch-levers; and it consists, essentially, of certain peculiarities of construction and arrangement hereinafter particularly described, and pointed out in the claims.

In the accompanying drawing like letters designate the same parts.

The drawing illustrates a side elevation of my improved lever and its connections as adapted and applied to the knee or standard of a sawmill-carriage for the operation of the dogs.

Although my improvementsare applicable to levers employed for many other purposes, for convenience of illustration I have shown and will describe them as applied to a dogging-lever in connection with a head-block and knee of a sawmill-carriage.

Referring to the drawing, 0 is the handlebar of the lever, D a notched quadrant or arc, and E a latch pivoted to the handle-bar O and provided with a tooth a, beveled on one side to correspond with the notches in said quadrant, over which it loosely drags when the handle-bar is advanced or swung to the right. This latch is not operated automatically by an independent initial movement of the handle-bar, but by an elbowshaped grip-lever G, pivoted to the handlebar 0 and connected with said latch by a rod g. It is held in engagement with the quadrant by a spring Fbearing at one end against a keeper or guide f, through which said rod passes, and at the other end against an adjusting-nut on said rod. This lever is automatically locked when moved into its home position by a hook e" on said latch passing over the beveled or inclined side of and engaging with a tooth d on said quadrant and may be made within the intended scope and spirit of my invention.

I claim- 1. In a latch-lever, the combination with a quadrant having notches 0r teeth beveled on one side, and a home-catch, of a handle-bar fulcrumed concentrically with said quadrant,

a latch pivoted to said handle-bar and provided with a tooth to ride freely over said teeth when moved away from said home-catch and with means to positively engage said catch and hold the lever when it is in its home position, a spring arranged to hold said latch in engagement with the ordinary notches in said quadrant and in positive engagement with said home-catch, and means to operate the latch, substantially as and for the purposes set forth.

2. In a latch-lever, the combination with a quadrant having inclined notches and provided at one end with a tooth constituting a home-catch, of a handle-bar fulcrumed concentrically with said quadrant, a latch pivoted to said handle-bar provided with a beveled tooth to slide over the notches of the quadrant and having a hook to engage the home-catch tooth of the quadrant, an operating-rod connected to said latch, and a spring for holding the latch in engagement with the quadrant and positively locking the lever in its home position, substantially as and for the purposes described.

In testimony that I claim the foregoing as my own I aflix my signature in presence of two witnesses. I

ERNST J. MULLER. Witnesses:

CHAS. L- Goss, E. H. BOTTUM. 

